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Acute renal failure

W C Waltzer

    American Family Physician
    |September 1, 1982
    PubMed
    Summary

    Acute renal failure, often caused by ischemia or nephrotoxins, involves renal vasoconstriction. Management focuses on volume control and dialysis to prevent complications like infection.

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    Area of Science:

    • Nephrology
    • Critical Care Medicine

    Background:

    • Acute renal failure (ARF) is frequently linked to renal ischemia.
    • Nephrotoxins, including antibiotics, contrast media, and anesthetics, are increasingly recognized as significant causes of ARF.
    • The precise pathophysiology of ARF remains under investigation, with renal vasoconstriction identified as a key contributing factor.

    Purpose of the Study:

    • To summarize the common causes and characteristics of acute renal failure.
    • To highlight the importance of renal vasoconstriction in ARF pathophysiology.
    • To outline management strategies and identify major causes of mortality in ARF.

    Main Methods:

    • Review of existing literature on acute renal failure.
    • Analysis of characteristic clinical and urinary findings.
    • Discussion of management principles and outcomes.

    Main Results:

    • Renal ischemia is the most common cause of ARF.
    • Nephrotoxins are emerging as important etiologies.
    • Characteristic features include oliguria, isosthenuria, and high urinary sodium concentration (>25 mEq/L).

    Conclusions:

    • Renal vasoconstriction plays a crucial role in ARF.
    • Effective management involves careful volume control and dialysis.
    • Infection and the underlying disease are the primary determinants of mortality in ARF.

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